GIS Dictionary

daemon

In programming, a process that continuously runs in the background, without being explicitly implemented, and performs a specified operation ...

data

Any collection of related facts arranged in a particular format; often, the basic elements of information that are ...

data capture

Any operation that converts GIS data into computer-readable form. Geographic data can be captured by being downloaded directly ...

data frame

A map element that defines a geographic extent, a page extent, a coordinate system, and other display properties ...

data frame

A map element that defines a geographic extent, a page extent, a coordinate system, and other display properties ...

data model

1 In GIS, a mathematical construct for representing geographic objects or surfaces as data. For example, the vector ...

data model

1 In GIS, a mathematical construct for representing geographic objects or surfaces as data. For example, the vector ...

data view

An all-purpose view in ArcMap and ArcReader for exploring, displaying, and querying geographic data. This view hides all ...

database

One or more structured sets of persistent data, managed and stored as a unit and generally associated with ...

datum

The reference specifications of a measurement system, usually a system of coordinate positions on a surface (a horizontal datum) or ...

datum points

In Survey Analyst for field measurements, survey points that are not defined by computations, but that are the input data ...

DCOM

Acronym for Distributed Component Object Model. Extends COM to support communication among objects on different computers on a ...

degree

A unit of angular measure represented by the symbol . The earth is divided into 360 degrees of longitude ...

deletes table

The geodatabase system table, created when a feature class or table is registered as versioned, that maintains information ...

delta file

A file that contains data edits that can be exchanged between geodatabases or between geodatabases and other data ...

DEM

Acronym for digital elevation model. The representation of continuous elevation values over a topographic surface by a regular ...

demography

The statistical study of human populations, especially their locations, distribution, economic statistics, and vital statistics.

depot

In ArcGIS Network Analyst, a network location used to represent a starting, stopping, or renewal location for routes ...

derived data

In ModelBuilder, data created by running a geoprocessing operation on existing data. Derived data from one process can serve as ...

destination

The secondary object in a relationship class, such as a table containing attributes associated with features in a related ...

detrending

The process of removing the trend from a spatial model by subtracting the trend surface (usually polynomial functions of ...

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